Private Timestamps and Selective Verification of Notarised Data on a Blockchain

ePrint Report: Private Timestamps and Selective Verification of Notarised Data on a Blockchain

Enrique Larraia, Owen Vaughan

In this paper, we present a novel method for timestamping and data notarisation on a distributed ledger. The problem with on-chain hashes is that a cryptographic hash is a deterministic function that it allows the blockchain be used as an oracle that confirms whether potentially leaked data is authentic (timestamped or notarised by the user). Instead, we suggest using on-chain Pedersen commitments and …

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